/* ── Base ── */
html { scroll-behavior: smooth; }
body { -webkit-font-smoothing: antialiased; }

/* ── Navbar scroll state ── */
#site-header.scrolled {
    background: rgba(254, 253, 248, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

.nav-link {
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #5fa050;
    transition: width 0.3s ease;
    border-radius: 9999px;
}
.nav-link:hover::after {
    width: 100%;
}

/* ── Mobile menu ── */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}
.mobile-link {
    position: relative;
}
.mobile-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #5fa050;
    transition: width 0.3s ease;
    border-radius: 9999px;
}
.mobile-link:hover::after {
    width: 60%;
}

/* ── Scroll reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal-left {
        opacity: 0;
        transform: translateX(-30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal-right {
        opacity: 0;
        transform: translateX(30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal-up.visible,
    .reveal-left.visible,
    .reveal-right.visible {
        opacity: 1;
        transform: translate(0, 0);
    }
}

/* ── Card hover lift ── */
.reveal-up:hover {
    transform: translateY(-4px);
}
@media (prefers-reduced-motion: no-preference) {
    .reveal-up.visible:hover {
        transform: translateY(-4px);
        transition: transform 0.3s ease;
    }
}

/* ── Focus styles ── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid #5fa050;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ── Selection ── */
::selection {
    background: #b8d4af;
    color: #19351f;
}